/// <summary>
/// だいたい0.3秒おきの動画サムネイルを取得する
/// </summary>
/// <param name="videoPath">ビデオファイルパス</param>
/// <returns></returns>
public static IEnumerable <Bitmap> GetThumbnails(string videoPath)
{
// メタ情報で再生時間取得
var ffprob = new NReco.VideoInfo.FFProbe();
var info = ffprob.GetMediaInfo(videoPath);
var duration = info.Duration;
var videoConv = new NReco.VideoConverter.FFMpegConverter();
// 最短0.3秒おき、最大100分割
var skipSec = duration.TotalSeconds < 30 ?
0.3f : (float)(duration.TotalSeconds / 100);
var frameSec = 0f;
while ((float)duration.TotalSeconds > frameSec)
{
// Bitmapリソースは受信側で開放する。
var jpegStream = new MemoryStream();
videoConv.GetVideoThumbnail(videoPath, jpegStream, frameSec);
yield return((Bitmap)Image.FromStream(jpegStream));
frameSec += skipSec;
}
}
private void BtnConvert_Click(object sender, EventArgs e)
{
this.btnBrowse.Enabled = false;
this.btnConvert.Enabled = false;
this.btnDestination.Enabled = false;
this.listAudio.Items.Clear();
int i = 0;
this.lblCurrentFile.Visible = true;
this.pbProgress.Visible = true;
this.listVideo.Visible = true;
this.listAudio.Visible = true;
this.pbTotalProgress.Visible = true;
this.pbProgress.Maximum = 100;
this.pbTotalProgress.Maximum = 100;
this.totalItem = this.listVideo.Items.Count;
this.pbTotalProgress.Value = 0;
this.processedItem = 0;
foreach (string file in this.input)
{
try
{
this.pbProgress.Value = 0;
this.processedItem = i + 1;
//var item = this.listVideo.Items[i];
//string outputFile = item.ToString();
var outputFile = Path.GetFileNameWithoutExtension(file); //outputFile.Substring(0, outputFile.LastIndexOf('.'));
this.lblCurrentFile.Text = "Converting: " + file;
var ConvertToAudio = new NReco.VideoConverter.FFMpegConverter();
var ffprobe = new NReco.VideoInfo.FFProbe();
MediaInfo videoInfo = ffprobe.GetMediaInfo(file);
this.totalSeconds = videoInfo.Duration.Milliseconds;
ConvertToAudio.ConvertProgress += new EventHandler <ConvertProgressEventArgs>(this.UpdateProgress);
ConvertToAudio.ConvertMedia(file, this.txtAudio.Text + "\\" + outputFile + ".mp3", "mp3");
this.listAudio.Items.Add(this.txtAudio.Text + "\\" + outputFile + ".mp3");
i++;
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
i++;
}
}
this.lblCurrentFile.Text = "Completed";
this.btnBrowse.Enabled = true;
this.btnConvert.Enabled = true;
this.btnDestination.Enabled = true;
}
public void run(bool to1dir, bool allFiles, List <OutputFileObj> videos, List <OutputFileObj> others, MainWindow window,
CodecOption codec, AudioOption audioOp, ResolutionOption res, QualityOption quality, VideoTypeOption typeOp)
{
Console.WriteLine(
"Running Configurartion:" +
"\n Codec: " + Enum.GetName(typeof(CodecOption), codec) +
"\n Audio Codec: " + Enum.GetName(typeof(AudioOption), audioOp) +
"\n Video Resolution: " + Enum.GetName(typeof(ResolutionOption), res) +
"\n Video Type: " + Enum.GetName(typeof(VideoTypeOption), typeOp));
int totalVideos = videos.Count * 100;
window.Dispatcher.Invoke(() => window.allVideoFilesProgressBar.Maximum = 100);
Converter = new FFMpegConverter();
int index = 0;
MainWindow _window = window;
Thread _t = Thread.CurrentThread;
Converter.ConvertProgress += (sender, e) =>
{
try
{
_window.Dispatcher.Invoke(() =>
{
Console.WriteLine("Processed: " + e.Processed);
_window.currFileProgressBar.Value = (float)e.Processed.TotalSeconds / (float)e.TotalDuration.TotalSeconds * 100;
Console.WriteLine((float)e.Processed.TotalSeconds / (float)e.TotalDuration.TotalSeconds * 100);
Console.WriteLine(_window.currFileProgressBar.Value);
_window.allVideoFilesProgressBar.Value = 100 / (float)videos.Count * index +
(float)e.Processed.TotalSeconds / (float)e.TotalDuration.TotalSeconds * 100 / (float)videos.Count;
});
}
catch (TaskCanceledException tce)
{
_t.Abort();
}
};
foreach (OutputFileObj video in videos)
{
var videoMedia = new NReco.VideoInfo.FFProbe().GetMediaInfo(video.Path);
window.Dispatcher.Invoke(() =>
{
window.currFileProgressBar.Maximum = 100;
});
if (typeOp != VideoTypeOption.copy)
{
video.OutPath = System.IO.Path.ChangeExtension(video.OutPath, "." + Enum.GetName(typeof(VideoTypeOption), typeOp));
}
if (audioOp == AudioOption.flac &&
System.IO.Path.GetExtension(video.Path).ToLower() ==
"." + Enum.GetName(typeof(VideoTypeOption), VideoTypeOption.mp4).ToLower())
{
audioOp = AudioOption.copy;
}
string scaleString =
res == ResolutionOption.copy ? "" :
res == ResolutionOption._1080 ? "-vf scale=-2:1080" :
res == ResolutionOption._720 ? "-vf scale=-2:720" :
res == ResolutionOption._480 ? "-vf scale=-2:480" :
res == ResolutionOption._240 ? "-vf scale=-2:240" : "";
Func <string> getCopyCodec = () =>
{
string videoCodec = videoMedia.Streams.ToList().Find(
(item) => item.CodecType.ToLower() == "video").CodecName;
if (videoCodec.Contains("h264"))
{
return("libx264");
}
if (videoCodec.Contains("hevc"))
{
return("libx265");
}
return("libx264");
};
string codecString =
codec == CodecOption.copy ? getCopyCodec() :
codec == CodecOption.h264 ? "libx264" :
codec == CodecOption.HEVC ? "libx265" : getCopyCodec();
string Command = string.Format(
"-c:v {3} {0} -crf {1} -c:a {2} -stats -y",
scaleString, (int)quality,
Enum.GetName(typeof(AudioOption), (int)audioOp), codecString);
Console.WriteLine("Input Path: '" + video.Path + "'");
Console.WriteLine("Output Path: '" + video.OutPath + "'");
System.IO.Directory.CreateDirectory(System.IO.Path.GetDirectoryName(video.OutPath));
Console.WriteLine("Created direcotory: '" + System.IO.Path.GetDirectoryName(video.OutPath) + "'");
Console.WriteLine("Running Command: '" + Command + "'");
Converter.ConvertMedia(video.Path, null, video.OutPath, null, new ConvertSettings()
{
CustomOutputArgs = Command
});
Console.WriteLine("Video converted");
index++;
}
}
